Car truck side frame



3 Sheets-Sheet 1 June 27, 1933 G. T. JOHNSON Er AL CAR TRUCK SIDE FRAME Filed Aug. 2, 1929 June 27, 1933. Q T JHNASON Er AL 1,916,653

GAR TRUCK SIDE FRAME Filed Aug. 2, 1929 3 Sheets-Sheet 2 June 27, 1933. G. T. JOHNSON ET AL CAR TRUCK SIDE FRAME Filed Aug. 1929 3 Sheets-Sheet 3 Patented June 27,` .1933

PATENT' ori-ica GEORGE "1. JOHNSON' AND MERRITT R.

THE BUCKEYE HANSEN, STEEL cAsriNes COMPANY, or conuirisns, onio 0F COLUMBUS, OHIO, ASSIGNORS T0 can 'rnucx sinn maman `Application led August 2,

rlhis invention relates to improvements in car truck side frames, and one of the objects isto provide a side frame in which the eiective span of the spring seat member or portion is materially reduced, so as to make, it a much stronger member or portion.

A further object is to lift the lower ends of; the diagonal tension members of the frame so as to raise the lines of action of the forces 'in those members, with respect to the spring seat member force, and thus produce a favorable counter-active bending tendency which reduces the bending in the central portion of the spring seat member.

Another object is to furnish a side frame, the top member of which is constructed to revent any outward buckling of the walls of the top member under vertical load.

With the foregoing objects outlined and with other objects in viewy which will appear as the description proceeds, the invention consists in the novel features hereinafter described in detail, illustrated in the accompanying drawings, and more particularly ointed out in the appended claims.

Referring to the drawings, Fig. 1 is a side elevation of a car truck side rame made in accordance with our invention.

Fig. 2 isa top plan view of one-half of the same.

- Fig. 3 is a bottom plan half of the same.

Fig. 4 is a transverse sectional view of a detail on the line of Fig. 1.

5 is .a similar view on the line 5-5 of Fig. 1. 1 y l Fig. 6 is a horizontal sectional view on the line-of Fig. 1.

Fig. 7 is a partial horizontal sectional view o n the line 7--7fof Fig, 1. r

Fig.. 8 a transverse vertical sectional view taken through the medial portion of the frame.

view of the other Fig. 9 is a side elevation of a modification.

Fig. 10 is a sectional view on the hne -io-io of rig. 9.

, In the embodiment of the invention illustratedin Figs. 1 to 8 inclusive, the compression member xof the siderame is shown at 11,

' pockets Y, while the side Iwebs 2O merge into the Vtension member-near 1929. Serial No. 382,894.

the tension member at 12, the columns at 13, and the journal boxes at 14.

In the present invention, the compression member 11 is of inverted U- hape throughout substantially its entire length, and it is made up of a top plate or web 15, and depending side walls 16v which terminate in inturned lianges 17. These ianges may be joined at spaced points by bridges 18, and if desired, a bridge 19 may alsolbe located at the medial portion of the frame.

Each of the diagonal portions of the tension member is also preferably of inverted U-shape, and is made up of a web or plate 20 having depending side walls 21 which terminate in inturned flanges 22 that may be connected by bridges 23.

The webs 2O at the lower-ends of the columns 13 have their medial portions extended to provide recesses or portions of each of the webs 2O continue straight downwardly as shown at A, t'o provide straps which are arranged at opposite sides of the pockets Y. The lower ends of the straps A merge into the spring seat member 24 -at the points X While the medial portion of the webs 20 of the diagonal parts merges into the ends of abruptly downwardly,

vthe spring seat member substantially directly beneath the webs 25 of It will the columns 13.

tops of the journal boxes, as shownat 26.

This construction provides for increased spring capacity within the bolster opening B, and 'allows all of the springs to be' arranged on one level, as distinguished from a prior proposal, in which additionalspring capacity is obtained partly by placing some ot the coils at a higher level than the others. It will be noted that in our arrangement, there are depressions or pockets Y, formed in the webs of the diagonal portions of the the lower ends of -said portions 'for seating coiled springs, and that these diagonal portions make a direct connection between the tops of the journal boxes 14'and the top of the spring seat 24. This, in combination with the new i turned flange all along the top member,

also be noted that the upper ends of the,

\ f consti utes a novel 100 construction, and has decided advantages over known structures. A distinguishing feature of such structure is that the straps A are parts of, and coincident with the diagonal portions of the tension member 12, the depressions or pockets Y being simply local irregularities formed in the webs 20, and with this we have combined ythe inturned flange type or top member 11.

Furthermore, the bolster opening B is completely bounded by a transverse web, except' for certain holes therein.

In this design, the diagonal tension portions really originate at the points X instead of at the usual points Y. Such an arrangement has two distinct structural advantages, viz.:

First, the effective span of the spring seat member 24 is materially reduced, which makes it a much stronger member.

Second, lifting the lower ends of the diagonal portions of the tension member, raises the lines of action of the forces in those portions with respect to the spring seat member force, and produces a favorable counteractive bending tendency, which reduces the bending in the central portion of the 4spring seat member.

The inturned flanges 17 along the top member have a distinct advantage over the outturned bead type, in that it prevents the outward buckling of the walls of the top member under vertical load. Such a section is also more economical for resisting the transverse loading. At five oints throughout the frame, where the buc (ling tendency is usually greatest, we have shown ties or bridges from wall to wall. However, we may omit any or all of these ties in particular designs, as their use and location depends largely upon special designs.

It will be noted that the inturned flanges 17 along the top member 11, in Fig. 1, is discontinued at the brake hanger brackets 30, butsuch flanges may be continuous, from one end of the frame to the other, as shown at 17a in Fig. 9. Of course, the same brake hanger brackets may be used with either form of the invention.

From the foregoing it is believed that those skilled in the art may clearly understand the construction and advantages of the invention, and in closing, we may say that the terms and expressions employed herein are used as terms of description and not of limitation, and there is no intention in the use of such terms and expressions, of eX- cluding any mechanical equivalents of the features shown and described, or portions thereof, but it is recognized that various structural modifications are possible within the scope of the invention claimed.

What we claim and desire to secure by 5 Letters Patent is:

1. A. car truck side frame including atena spring seat supported by sion member having diagonal portions, a uniplanar spring seat, said diagonal' portions being of inverted U-section and having webs, bolster opening columns extending upwardly from said diagonal portions, portions of said webs having pockets arranged at the lower ends of the columns, and said portions of the webs merging into the spring seat member, other portions of the webs merging into the spring seat member at points spaced inwardly from the columns.

2. In a car truck side frame, a tension member having diagonal portions of inverted U-section, afuniplanar spring seat member, each of said diagonal portions having a web, and each web having a part forming a depression and merging into the spring seat member, and another portion merging into the spring seat vmember at`a point spaced from said depression.

3. ln a car truck .side frame, a uniplanar spring seat member, a tension member of inverted U-section having portions converging toward the spring seat member, each of said portions having a web, the lower end of each web having a part provided with a depression and merging into the spring seat member, and another part merging into the spring seat member at a point spaced from said depression.

4.' In a car truck side frame, a uniplanar spring seat member, a tension member of inverted U-section having portions converging toward the spring seat member, each of said portions having a web, the central part ot the lower end of the web forming a pocket and merging into an end of the spring seat member, the side portions of the lower end of each web forming straps at the side of its associated pocket and merging into the sprin seat member.

5. n a car truck side frame, a spring seat member, a tension member having portions conver ing toward the spring seat member, each o said portions being of substantially inverted U-shape throughout substantially its entire length, and including a diagonal web and depending side walls, the lower end of the central portion of each web being of`fset to provide a pocket and merging into the spring seat member, the side portions of the lower end of each web continuing downwardly in line with the main portion of the web and forming straps that are arranged at opposite sides of the associated pocket and merge into said spring seat member.

6. A car truck side frame, including a compression member, a tension member, bolster opening columns connecting said members,

the tension member at the bottom of the bolster opening, said parts forming a substantially unbroken transverse web delining .the bolster opening, the tension member having top webs forming depressions at tl.; base of said columns converging portions,

spaced inwardly from and inclined upwardly from said depressions at the outside of said columns.

7. A car truck side frame, including a compression member, a tension member, bolster opening columns connecting said members, a spring seat supported by the tension member at the bottom of the bolster openin said parts forming a substantially un roken transverse web bordering'the bolster open-J ing, the tensin member having downwardly each o said converging portions having a web whose lower end has its central portion olset downwardly and merging into the ends of the spring seat to provide pockets at'the lower ends of the columns.

8. A car truck side frame, includin a compression member, a tension mem r, bolster opening columns connectin said members, a spring seat supported by t e tension member at the bottom of the bolster opening, said parts ormin a substantially unbroken transverse web de ing the bolster opening, said compression member being of substantially inverted U-shape, and having inturned iianges arranged throughout substantially its entire ber having top webs forming depressions at the base of said columns and inclined upwardly from said depressions at the outside ci' said columns.

9. A car truck sion member having diagonal portions,` a spring seat, said diagonal portions having webs, bolster opening columns extending upwardly from said diagonal portions, portions of said webs having pockets arranged at the lower ends of the columns, and sai portions of the webs merging into the spring seat member, other portions of the webs merging into the "spring seat member atl points spaced inwardly from the columns, and a compression member connected to the upper ends of the columns and being of substantially inverted n U-shaped section, and

v.provided with inturned flanges throughout substantially its entire length.

10. A car truck side frame including a compression member, `a tension member, journal boxes united with the ends of said members, spaced columns having their upper and lower ends united with said members to form a bolster opening, a spring seat carried by the tension member and arranged at the bottom of the bolster opening, the tension member including portions converg-ing toward the spring seat, each of said converging portions including a web extending from the top of one of the journal boxes to the spring seat, the lower end of each web having its central portion offset to provide a pocket, and its side portions continued downwardly and merging into the spring seat at a point said pocket. l1. A car truck side frame including a length, the tension mem-l side -frame including a tension member including portions converging ctoward the spring seat, each of said converging portions including a web extending from the top of one of the journal boxes to the spring seat, the lower end of each web having its central portion offset to provide a pocket, and its side portions continued down- Wardly and merging into thespring seat at a point spaced inwardly from said pocket, said compression member being provided with inturned flanges which extend substantially throughout the entire length of the compression member.

12. Amar truck side frame including a compressionl member, a tension member, journal boxes united with the ends of said members, spaced columns having their upper and-lower ends united with said members to form a bolster opening, a spring seat carried by the tension member and arranged at the bottom of the bolster opening, the tension member including portions converging toward the spring seat, each of said convergias ing portions including a web extending from the top of one of the journal boxes to the spring seat, the lower end of each web having its central portion ofset to provide a pocket, and its side portions continued downwardly and merging into the spring seat at a point spaced inwardly from said pocket,the compression member, columns and spring seat forming a transverse web for the bolster opening provided at certain points with openings therein.

13. A car truck side frame including a compression member, a tension member, journal boxes united with the ends of said members, spaced columns havin their upper and lower ends united with sai members to form a bolster opening, a spring seat carried by the tension member and arranged at the bottom of the lbolster opening, the tension member including portions converging toward the spring seat, each of said converging portions including a web extending from the top of one of the journalnboxes to the spring seat, the lower end of eachweb having its central portion oset to provide a pocket, and its side portions continued downwardly and merging into the spring seat at a point spaced inwardly from said pocket, said converging portions having depending side walls terminating in inturned flanges.

14. A car truck side frame including a compression member, a tension member,

journal boxes united with the ends of said.

members, spaced columns having their upperand lower ends united with said members to form a bolster opening, a spring seat carried by the tension member and arranged at the bottom of the bolster opening, the tension member including 4portions converging toward the spring seat, each of said converging portions including a Web extending from the top of one of the journal boxes to the spring seat, the lower end of each web having its central portion offset to provide a pocket, and its side portions continued downwardly and merging into the spring seat at a point spaced inwardly from said pocket, the compression member, columns and spring seat forming an integral transverse Web defining the bolster opening, and provided at certain points With openings therein.

15. In a car truck side frame, a tension member of inverted U-section having diagonal portions, a uniplanar spring seat member, each of said diagonal portions having a `Web, and each web having a part forming a 1y extending anges at their upper portions, l

and each of said inclined tension member- Webs having a part forming a depression and merging into the spring seat member.

n testimony whereof, We have signed this specification.

GEORGE T. JOHNSON. MERRITT R. HANSEN. 

